On lesson 2, power is always the biggest concern when it comes to colo so it may not necessarily be that the facility is attempting to nickel and dime you (alth

On lesson 2, power is always the biggest concern when it comes to colo so it may not necessarily be that the facility is attempting to nickel and dime you (although that is often also the case), but that they need to restrict power density to a certain level so they can ensure they have enough power for the rest of the facility and so that they can provide adequate cooling. Pricing is also highly dependent on how much available space there is in a facility; the best deals are to be had when a facility is brand new and needs to fill the space. Whereas a facility that's almost full may stick to full list price and be content to have you walk if you don't want to pay those rates. On lesson 6, when the hosting provider does own the building, chances are there will be less bandwidth options available within the building unless the provider specifically offers bandwidth neutral services. May not be a concern if you're happy just using the provider's own bandwidth mix, but if you're pushing a significant amount of traffic, or need higher quality transit, you are much better off shopping around for different bandwidth options.